/*
 * Copyright 2012 Marsrutai.lt
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package lt.marsrutai.mobile.android.util;

import java.util.Calendar;
import java.util.List;

import lt.marsrutai.mobile.android.model.ArrivalTime;
import lt.marsrutai.mobile.android.model.enums.DateTime;

public class TimeUntilNextDeparture {

    private String returnString = "??";
    private boolean isRealtime = false;

    public TimeUntilNextDeparture(List<ArrivalTime> trackStopTimes) {
        this(trackStopTimes, false);
    }

    public TimeUntilNextDeparture(List<ArrivalTime> trackStopTimes, boolean expected) {

        DateTime now = new DateTime();

        if (trackStopTimes != null) {
            for (ArrivalTime stopTime: trackStopTimes) {
                Calendar time = expected ? stopTime.getExpectedTime() : stopTime.getScheduledTime();

                int minutesRemaining = now.minutesUntil(time);
                if (minutesRemaining >= 0) {
                    returnString = Integer.toString(minutesRemaining);
                    isRealtime = !stopTime.getExpectedTime().equals(stopTime.getScheduledTime());
                    return;
                }
            }
        }
    }

    @Override
    public String toString() {
        return returnString;
    }

    public boolean getIsRealtime() {
        return isRealtime;
    }

}
